## Search found 11 matches

Sat Mar 12, 2016 4:11 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Ring flip
Replies: 1
Views: 357

### Ring flip

Is there a difference between ring flip and chair flip?
From what I know, chair flip is to make directions the same while the position changes.
Fri Mar 04, 2016 11:16 am
Forum: *Nucleophilic Substitution
Topic: Reactions
Replies: 1
Views: 731

### Reactions

What are the differences between Sn1 and Sn2 reactions? Thank you in advance!!!
Sun Feb 21, 2016 2:26 am
Forum: Experimental Details
Topic: Rate of reaction
Replies: 2
Views: 599

### Rate of reaction

If the question doesn't ask to use which method, what method do we use? The slow reaction that determines the overall reaction or the pre-equilibrium approach? I'm confused on how to distinguish when to use these two methods?
Fri Feb 12, 2016 11:13 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Heat capacity
Replies: 1
Views: 353

### Heat capacity

Which has a higher heat capacity? Ethane or Ethene? What method do you we use to distinguish/ compare heat capacity?
Sun Feb 07, 2016 8:17 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Quiz 1 Q3
Replies: 3
Views: 436

### Quiz 1 Q3

Nasa has recently considered the use of steam-powered rockets on an efficient, but very slow, journey to Mars. Solar panels are to heat the water into steam to be later ejected from the nozzle of the rocket. Assuming that the temperature inside the engine is 100.°C and the temperature of space is -2...
Mon Jan 25, 2016 11:11 am
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Entropy
Replies: 1
Views: 366

### Entropy

How do we use molecular structures to determine the strength of the standard molar entropy? Thank you in advance!
Sun Jan 17, 2016 12:07 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Calorimeter
Replies: 1
Views: 355

### Calorimeter

How does calorimeter work? And how does it apply in a practical problem? Thank you in advance!
Sat Jan 09, 2016 2:01 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Equation
Replies: 1
Views: 342

### Equation

Why is there a minus sign in the equation w= -Pex∆V? Can anybody explain for me please? Thank you so much in advance!
Wed Nov 25, 2015 6:58 pm
Forum: Polyprotic Acids & Bases
Topic: Finding pH of a polyprotic acid (Video Inside)
Replies: 1
Views: 656

### Re: Finding pH of a polyprotic acid

Here is the solution of your question:
Note: I made a video and posted on YouTube by my phone. It's a little bit rushing so I apologize if the video quality is not that pretty.
Fri Nov 20, 2015 11:52 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Shapes
Replies: 2
Views: 517

### Shapes

Why the ion like [Co(en) 3]+3 is octahedral? I understand that en is bidentate so if there are three of them so they are octahedral. But I still don't get how it actually works like? Can someone tell me in details? Thanks in advance!
Sun Oct 04, 2015 12:14 am